A racecar driver steps on the gas,and his racecar travels 20 meters in 2 seconds starting from rest.The acceleration of the racecar is 5 m/s2.
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Q48: Twenty kilometers is
A)200,000 m.
B)20,000 m.
C)2,000 m.
D)200 m.
E)0.02
Q49: A racecar goes around a 200 m
Q50: In expressions like Δv and Δt,Δ stands
Q51: The acceleration after starting from rest is
Q52: Which metric prefix means one thousand?
A)milli-
B)centi-
C)one-
D)kilo-
E)mega-
Q54: The distance from the starting point is
Q55: The number of cycles of a periodic
Q56: The velocity acquired after starting from rest
Q57: Which of these are fundamental physical quantities?
A)space,time,and
Q58: How many megabytes are there in a
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